Bond-tie for walls and the like.



w. H. BROWN. BOND TIE FOR WALLS AND THE LIKE;

APPLICATION FILED JULY 25, l1907.

947,1 94. f Patnd .um 18,1910.`

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L/ A 1w W. 11. BROWN. BOND TIE FOB. WALLS AND THE LIKE.

APPLICATION FILED JULY 25, 1907.

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UNITED sTATEs IPATENT oEEIoE WILLIAM HEEVEY BnowN, or Yonai, ENGLAND.

BOND-TIE ron WELLS AND THE LIKE.

Spectcation'of Letters Patent.

Patented Jan.

pplication med July 25, 1907. Serial No. 385,540.

To all 'whom 'it 'may concern:

Be it knownn that I,WILLIAM vI-IERVEII BROWN, a subject -of the King VofGrreaty Britain, formerly residing at No. 62 Bootham, but now at No. 3Crofts Terrace, 1n

thecity and county of York, England, have invented new and usefulvImprovements in Bond-Ties for Walls and the Like, of which the followingis a specilication.

My invention relates to and is improved means for reinforcing buildingwork by bonding or more elfectually securing together the coursesorfunits of brick work or other building material in walls and. otheryiliary strips or pieces. The main and auxiliary strips maybe of anydesired length or width as required by the circumstances of the case.The auxiliary strips may be either formed during the manufacture of andin one piece with the main strip of the rein- .forcement or may be wiredorsuitably fixed to the central or. main strip afterward.`

The auxiliary strips may according to the circumstances of the case beformed on =or fixed to the main strip across the breadth or along theside thereof and at any suitable or desired angle. The distances atwhich the said auxiliary strips shall be formed or fixed will beregulated by the requirements of each individual case. v

My reinforcement is applicable to all parts of 'the structure and to theangles of walls equally with thewalls themselves.v It is also applicableto land is especially adapted for bonding together double walls n orwalls containing air spaces and for bonding brick Work to concrete orreinforced` concrete structures.

My invention is more particularly described vvith reference to theaccompanying drawings in which:

Figure 1 shows a wire netting reinforcing strip. Fig. 2 shows a wirenetting reinforcing strip strengthened by means of an additional centralstrand running parallel to' the outer edge or selvage. Fig. 8 showsi awire netting reinforcing strip with a ,pair of additional strengtheningstrands. Fig. 4

shows la wire netting reinforcing strip vprovided with a series ofauxiliary strips. Fig.

5 shows the application of the strip shown in Fig.. 4. Fig. 6 is anisometric view showingja portion of a double brick wall containing anair space and bonded together by-my reinforcement. Fig; 7 is a detailview showing one method of forming the` bond by doubling thereinforcement on itself and inserting 1t between the courses of brickwork.

Referring now to the drawings, I insert between-thecourses of brick Worka stri of wire'nettingl 1 which may be of the orm shown in F1g.,1 orstrengthened by means of central tensional strands as shown inv Figs. 2and 3 in additionfto the selvage tensional strands. In each of theseforms of the improved wire-netting, reinforcing or bonding strip' itWillbe observed that said strip comprises relatively heavy longitudinalselvage tensional vwires or strands and intermediate lighter wires orstrands which are engaged with or 'coiled around the firstnamed 1 wires-or strands which may be termed. the warp strands, and which lighterstrands, which may be termed the.-

weft strands are plurally intercoiled with each other. In other Awordsthe lighter elastic or flexible strands of the netting are joinedtogether at proper intervals by being twisted several times around eachother, thereby forming longitudinally disposed coils at these points ofjunction. The mesh of the Wire netting stripsis coarse enough so thattheimortar may readily pass throu h the same, while the intertwistedcoils of t e weft strands are of sufficient size to secure a good-holdon the mortar inwhich they are embedded, so that klongitudinal strainsVor tensions on' the reinforcing strips will be 4changed to'lateral'compressional strains or stresses on the mortar and thetensional strains will thus be absorbed iby the mortar, owinfr to theAhold in the latter which is .due

large y to the-grip afforded by the embeddedvertical plane or side byside from one course, By a series of such of brick yto another. stripsl, I render the brick work monolithic and capable of resisting hightensional stresses while fracture Aand uneven settlements are renderedimpossible.

It will be obvious that the arrangements of thebond shown in Figs. ,4and are only shown by way of example and that `the series 'of strips 1may be arranged between the courses of brickwork ina great numberofways'according to the circumstances ofl cach case` Owing to my bondthe mortar between the courses is laced and interlacedwith woven thesame time at right angles. parallel and tangential to the direction ofevery possible stress that can affect the brlck work, giving bothelasticity and a erfect resistance to l shear. The action of wirenetting when embedded in a mortar-joint, with a weight of brick workabove it, is such that, when resisting a-tensional'stress in thedirection ofv its length, the natural tendency of the wire 4mesh toelongate and reduce its sectional area is resisted bythe mortar whichhas be'-` come locked in the meshesg' the direct tensional stresses,are, as a result, to a great extent arrested. This action also comesinto force when resisting 'forces that are acting at right angles to itslength. On the contrary hoop iron or sheet metal has no resistance toshear and its effect can only be compared to a steel joint embedded inconcrete or the purpose of reinforcement; it acts as an independentbody, and not in unison with the brick work, or the like, which it isreinforcing.- The reinforcement can be supplied in rolls and can bemoved forward'by the bricklayer as the work proceeds. It is found thatinstead of being a hindrance to the workman it gives his work an almostperfect alinement.

,In Figs. 4 and 5 I show the arrangement of a series of auxiliary strips22 added to the width of the main strip 1. These auxiliary strips mayalso be added along the edge of the main strip if desired and in anycase at any desiredangle. This form of bond is especially applicable forbonding an old wall,

- such as 23, to a. new wall, such as 24, or it may be used to bond aglazed or facing brick wall to a plain brick wall.

In Fig. 6 I show the sides of a double wall of brick (with air spacebetween the sections) bonded together by step to step reinforcement 2,'passing alternately from one wall to the other. In this :manner I amenabled, for instance, to build a nine inch double wall with a facingbrick outside and with a common brick inside as effective in resistingdampness and of greater strength.

4not been reinforced.

different materials such as facing than a fourteen inch double wallwhich has It will 'be readily understood from Figs. 6 and that thereinforcement 2 is formed of a strip of wire netting .similar in allrespects to the reinforcement l shown in Figs. 1 to 3.

In order to build s'ucha wall the strip isI first doubled and then placed between the two courses of brick work in one wall, as shown 1nFig. 7 and then passed to the other wall and again doubled between thetwo courses of brick in the latter wall and from thence back to thefirst wall where it is again doubled between two courses of brick and soon throughout the height of the walls.

It will be seen that, as shown in Fig. 6, I

may arrange a series of such strips 2 bonding together the two walls atany desired distance from each other.

It will be readilyl understood that these methods of reinforcement havethe effect of adding to and strengthening the power of resistance of thestructure to which itis applled, to and against pressure in orgfrom vanyldirection while it provides a satisfactogether rick with common brickor concrete with brick work or other building materials.

What I claim is:

1. A flexible or 'elastic reinforcing -bond formasonry structures,yconsisting of a coarse wire netting strip adapted to be embedded in themortar and which strip is provided with a series of side extensions orauxiliary strips, as 22, of wire netting extending outward transverselyfrom the bodyl of the main stri 2. A flexible or elastic reinforcingbond for masonry structures, consisting of a coarse wire netting stripcomprising relatory and cheap method of bonding ftively heavy selvagewarp strands and .relatively light and fiexible interposed weft strandsengaged with said warp strands and lintertwisted together at intervalsto form plural .coils disposedl'engthwise ofthe said netting strip, saidstrip being provided with said extenslons or auxiliary strips, as 22 ofwire netting extending outward transversely from the body of the mainstrip.

3. A flexible or elastic reinforcing bond for masonry structures,consisting of a coarse wire netting strip comprising heavy selvage warpstrands and one or more'heavy intermediate warp strands, and relativelylight and flexible weft strands engaged with said warp strands andintertwisted with each other, independently of their point of connectionwith said war strands, to form plural coils which are disposedlengthwise -of the said netting strip, said strip being provided withside extensions or auxiliary strips, as 22, of wire netti extendingoutwardv transversely from t e body of the main strip.

4. A reinforced bonded double Wallcoinprising walls spaced apart andeach formed of units of brick, stone, concrete or otherbuildingmaterials, a series of main wire netting strips arranged betweenthe inner and outer parts of the double walls, andy a series ofauxiliary wire netting strips connected to and extending outward fromthe main strips and passed between the courses .of the buildingmaterials forming said walls.

5. A reinforced or bonded double wall comprising walls spaced apart andeach formed of units of building material and a series of wire nettingstrips Varran ed between the .inner and outer parts oft e double wallsas a vertical step by step reinforcement, and passing alternatelybetween the courses of the building materials forming said walls. f Y

In testimony whereof I have signed my name to this specification in thepresence of two subscribingwitnesses.

WILLIAM HERVEY BROWN. Witnesses:

W. Boron, L. E. HAYNES.

